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A guide to effective land crab farming

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A guide to effective land crab farming
Farming techniques for field crabs on land
Farming techniques for field crabs on land

The model of farming crabs on land is a new type that many farmers have tried and succeeded. However, in order for the farming model to be highly effective and sustainable, it is necessary to pay attention to training and more technical guidance of the profession. Let’s follow the article below with Agrisearch to learn effective techniques for cultivating field crabs on land.

Effective land crab farming techniques

1. Choose a crab breed

Farming techniques for field crabs on land
A guide to farming crabs on land

The season to raise crabs can be year-round, but the most common is from April to August of the solar calendar. At this time, the conditions are extremely favorable, and the seed source is still abundant. During the dry season, crabs can still be farmed, but changes in temperature and environment will slow the growth of field crabs.

If transferring field crabs from far away, people need to calculate that from catching crabs to releasing crabs into the field no more than 24 hours.

The seed source is mostly natural due to the process of exploitation in different forms, so it also loses many parts. The shipping method is also not suitable. The best is to use the grid. Put crabs in reasonable bags to avoid them pressing and biting each other.

2. The density of field crabs compared to the culture environment

Density of field crabs (Source: Dan Viet)
Density of field crabs

Depending on the breed and the method of rearing, farmers need to adjust the density accordingly.

  • If it is a field crab caught from the wild, the pond density is 10-15 fish per m2, and raised in rice fields, from 5-7 animals per square meter.
  • If it is an artificial breeding crab, the pond density is 30-50 fish per square meter, while in the rice field 20-30 fish per square meter.

3. Food

Food for field crabs
Food for field crabs

Field crabs are omnivores, so the food for them is also quite diverse such as: snails, juveniles to sweet potatoes, tapioca, etc. In addition, you need to add nutrient-rich pellets for crabs about once every 7 to 10 days. during the process for crabs to grow fast.

Food for field crabs needs to be well preserved. So for every 1kg of crab we need 2.5-3kg of food. If the pond or field has a lot of natural food, the feed consumption rate will be even lower.

Each day field crabs consume 5 to 8% of their body weight, so feed them twice a day. Early morning should only feed from 20 to 40% and the rest should be fed in the cool afternoon.

People should note that they should feed at a fixed point to be able to control the crab’s ability to eat prey. From there, people will be able to adjust the appropriate amount of food, especially when the shell crabs will be able to eat each other.

Caring for crabs to grow quickly

Harvesting field crabs (Source: Nghe An Newspaper)
Harvesting field crabs on land
  • At night, people should hang lights in the rearing area. Both to ensure safety, and to attract insects as food for crabs.
  • We can also feed the crabs with water spinach, water hyacinth, etc. to the field to make food and shelter for the crabs. At the same time lower the temperature. In addition, people need to regularly check the net to avoid loss of field crabs.
  • After about 9 – 10 months, farmers were able to sell and the weight of crabs was about 50 to 55 fish 1 kg. Need to choose big and strong field crabs and have eggs to keep for the next crop.
  • When harvesting, you can slap your hands and shake hands. If the crabs are still small, they should be kept for the next crop.

Here is a scientific way to raise crabs. With just the above simple techniques, you have applied them for your first crop. If you follow the above procedure, you will have a healthy crab crop and achieve high economic value. Good luck with your implementation!

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